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Summary of Contents for Si-tex SP120C
- Page 1 SP120C Autopilot User Manual (v3) SI-TEX Main Office Address: 25 Enterprise Zone Drive, Ste 2 Riverhead, NY 11901 Tel: +1-631-996-2690 Email: service@si-tex.com Web: www.si-tex.com IMPORTANT: PLEASE RETAIN ON BOARD...
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Page 3: Table Of Contents
Important Installation Notes Installation Tools Required Overview Standard Equipment Additional Equipment Required System Block Diagram System Components / Installation Guides SP120C Control Display Unit Installation Dimensions and Guide Electronic Compass Rudder Feedback Unit 8-10 Installation and Wiring 11-13 System Operation... -
Page 4: Warnings
• It is recommended to install a rudder feedback unit for best performance; otherwise the system will not operate in auto / gps mode unless the vessel is moving at a configurable minimum speed. 2 of 34 SI-TEX Marine Electronics - SP120C Color Autopilot... -
Page 5: Important Installation Notes
• The SP120C must have a direct connection to power supply via a 15 amp circuit breaker or a 15 amp fused circuit and an isolating switch. -
Page 6: Overview
/ crimp lugs & related crimp tools • 2c x 2.5mm for extending motor and power cables (larger for long cable runs) • 1 pair 0.75mm for each nmea ELECTRONIC interface cable COMPASS 4 of 34 SI-TEX Marine Electronics - SP120C Color Autopilot... -
Page 7: System Components / Installation Guides
• Power: 12-24 Volts DC (Up to 29V During Charging) • Drive output up to 35A. *If current exceeds 35A, the drive output is inhibited. • Software controlled rudder limits, inhibits drive control at each mechanical limit. SI-TEX Marine Electronics - SP120C Color Autopilot 5 of 34... -
Page 8: Installation Dimensions And Guide
ELECOM Electronic Compass SP120C CDU Installation Guide (E-Compass V.3) - The SP120C Head unit should be mounted in a position accessible to Take care when handling the the steering position and protected compass as it is a sensitive piece of from direct rain or salt water. - Page 9 • A lower / aft mounted position along compass. the centre of the hull is preferred, to reduce the influence of vessel roll and pitch. E-Compass Dimensions SI-TEX Marine Electronics - SP120C Color Autopilot 7 of 34...
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Page 10: Rudder Feedback Unit
(for outboard engine installations) 6. To complete the install, use the SP120C advanced menu to calibrate the rudder limits and centre point of the RFU. 8 of 34 SI-TEX Marine Electronics - SP120C Color Autopilot... - Page 11 SOCKET. X < 325mm Y = 55mm, 80mm, 105mm or 130mm RFU ADJUSTMENT BLOCK RECOMMEND USING 32mm M5 BOLT, WASHERS & 105mm DISTANCE NUTS Example RFUS installations for outboard engines: SI-TEX Marine Electronics - SP120C Color Autopilot 9 of 34...
- Page 12 Rudder Feedback Unit 10 of 34 SI-TEX Marine Electronics - SP120C Color Autopilot...
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Page 13: Installation And Wiring
POWER +VE BREAKER SWITCH OR (15A) SUPPLIED POWER -VE CIRCUIT CABLES CUSTOMER BREAKER (15A) 12 OR 24 VDC SUPPLIED BATTERY CABLES *CUSTOMER 12 OR 24 VDC SUPPLIED BATTERY *CUSTOMER SUPPLIED SI-TEX Marine Electronics - SP120C Color Autopilot 11 of 34... - Page 14 If an emergency jog lever is fitted then the motor outputs must be isolated! to prevent damage to the drivers. To isolate, a 2 pole change over relay must be installed between the SP120C and the Solenoids, as per diagram below; Also as a preventative measure to ensure voltage spikes do not interfere with the AUTOPILOT or other equipment, spike suppression diodes should be fitted on solenoid valves.
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Page 15: System Operation
RFU WIPER UNIT LTW-6PIN System Operation Steering Modes After initially powering on the system the SP120C will always return to MANUAL mode If AUTO or GPS mode is active, press AUTO once to return. To control the rudder manually in this mode, press;... - Page 16 Before enabling this mode, ensure the GPS system has an activated waypoint, cursor or route, for the SP120C to follow. The boat will change course to steer at the maximum rate of turn, so it is recommended to ensure the vessel is heading towards the first GPS target at a suitable speed before enabling.
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Page 17: Display Screens
Amount of Deviation from Target Heading Target Heading Active Alarms Distance to Desired Waypoint GPS Mode Port Drive Motor Engaged NOTE: Rudder Angle indication will not be displayed in Non-RFU mode. SI-TEX Marine Electronics - SP120C Color Autopilot 15 of 34... -
Page 18: System Settings
Pilot Settings To access the SP120C Settings menu Press the button. MODE NOTE: SP120C Settings can be modified at any time, while using any of the modes. To increase or decrease any SP120C settings press MODE Continuously press to scroll between each of the SP120C Settings, or to return to main screen (or wait 5 seconds). -
Page 19: Pilot Settings
NOTE: If the vessel is understeering and taking a long time to get back on track, increase this value. If the vessel is over-steering or overshooting and making hard turns to stay on track, decrease this value. SI-TEX Marine Electronics - SP120C Color Autopilot 17 of 34... - Page 20 RATE OF TURN Range: 10-720 (degrees/min) Default: 700 Limits the rudder drive when the SP120C detects the vessel is turning too fast. I.e. if the rate of change in heading exceeds this value, the SP120C system limits the rudder drive to limit high speed turns. If this setting is too low, the vessel may understeer when changing course.
- Page 21 Increasing this boats with slow rudder speed, a longer value will limit the amount the SP120C pulse is required to drive the motor. pulses the rudder drive when making Backlight Bright minor course corrections.
- Page 22 Press to change a value or option of the selected item. Press again to save. AUTO Press to return to the previous menu (or wait 5 seconds) MODE 20 of 34 SI-TEX Marine Electronics - SP120C Color Autopilot...
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Page 23: Advanced Menus
The SP120C system will alarm when autopilot reacts to correct any the difference between the vessels change. This value has a similar heading and desired course to steer, effect to the ‘Sensitivity’ setting in the is greater than this value. primary PILOT Settings. SI-TEX Marine Electronics - SP120C Color Autopilot 21 of 34... -
Page 24: Initial Setup Installer's Instructions
< or > button. Be careful not to overdrive the rudder past the limit as the software limits are disabled in this mode. During Calibration also check the rudder drive direction is correct. 22 of 34 SI-TEX Marine Electronics - SP120C Color Autopilot... - Page 25 • Continue turning the vessel slowly until the message ‘CALIBRATION PASSED’ is displayed (Above) If you are turning too fast or too slow, a ‘CALIBRATION FAIL’ message will appear and you will be required to start the process again. SI-TEX Marine Electronics - SP120C Color Autopilot 23 of 34...
- Page 26 GPS COG’ setting. If the E-compass fails the GPS ‘COG’ heading’ will be used in this case, although will not be as accurate since the update rate will be much lower and COG does not work well until the vessel is moving. 24 of 34 SI-TEX Marine Electronics - SP120C Color Autopilot...
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Page 27: Gps Settings
GPS mode. MAG VARIATION USE Values: NMEA/MANUAL Default: NMEA Sets which source controls MAG Variation. I.e. Data supplied via GPS NMEA or set manually (see below) SI-TEX Marine Electronics - SP120C Color Autopilot 25 of 34... -
Page 28: Other Menu Items
– Install Options – COMS • Enable the sentences GLL, RMC, DIAGNOSTICS page. If a NMEA SOG, & VTG for the SP120C to sentence is correctly received, the indicate GPS position and for Speed GREEN sentence turns over Ground information. - Page 29 Advanced menu – Install Options page: About Page This page is used to check hardware version and firmware build dates, for each core. If this manual does not match your system, please contact SI-TEX for a firmware update. SI-TEX Marine Electronics - SP120C Color Autopilot 27 of 34...
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Page 30: Initial Inspection And Testing
Check that rudder moves in correct direction does not drive past limits Check RFU calibration is set if limits are not set Check Course change provides sufficient Rudder movement. (Auto mode) Check compass heading display on SP120C is available. Return steering to centre. Check GPS settings are correct as per section IMPORTANT: Always initially test system at low speeds first in open water during calm conditions. -
Page 31: Error Messages
Error Messages Alarms There are a number of possible A number of conditions will cause error messages that can be the SP120C to sound and flash the displayed on screen alarm message on the display. MOTOR SHORT Off Course Alarm... -
Page 32: Troubleshooting
Check circuit breaker (if applicable) Check in-line fuse of SP120C red wire Check all wiring connections SP120C Check Backlight setting SP120C does not move rudder when AUTO is selected C onfirm SP120C display is showing compass heading information & No alarm situation. C heck voltage is present at the SP120C motor connections (Yellow and yellow with black stripe) when AUTO is selected and a course change is applied. - Page 33 Troubleshooting - continued SP120C Display will not change from MANUAL STEER mode. Vessel speed may be below the set threshold, if USE RFU is set to NO. Check speed setting in the SP120C settings Vessel must be moving forward at or higher than that set speed.
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Page 34: Warranty
This warranty does not cover defects or damages caused by unauthorised service or damage through accident, misuse or abuse. The owner is also responsible for providing reasonable maintenance and weather protection of the equipment. 32 of 34 SI-TEX Marine Electronics - SP120C Color Autopilot... -
Page 35: Additional Information
Additional Information Si-Tex Marine Electronics Please refer to the Si-Tex website for more information Web: www.si-tex.com SI-TEX Marine Electronics - SP120C Color Autopilot 33 of 34... -
Page 36: Contact Information
SI-TEX Main Office Address: 25 Enterprise Zone Drive, Ste 2 Riverhead, NY 11901 Tel: +1-631-996-2690 Email: service@si-tex.com Web: www.si-tex.com...
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